20445101002 has 4 divisors (see below), whose sum is σ = 30667651506. Its totient is φ = 10222550500.

The previous prime is 20445100981. The next prime is 20445101111. The reversal of 20445101002 is 20010154402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10338619041 + 10106481961 = 101679^2 + 100531^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5111275249 + ... + 5111275252.

Almost surely, 2^20445101002 is an apocalyptic number.

20445101002 is a deficient number, since it is larger than the sum of its proper divisors (10222550504).

20445101002 is a wasteful number, since it uses less digits than its factorization.

20445101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10222550503.

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 20445101002 its reverse (20010154402), we get a palindrome (40455255404).

The spelling of 20445101002 in words is "twenty billion, four hundred forty-five million, one hundred one thousand, two".